A man sits in front of a police line at City Hall during an anti-Wall Street protest in Oakland, California, 25 October 2011. (REUTERS/Kim White)

Warning: Some may find the scenes of police brutality disturbing!

Today (Saturday) security thugs attacked peaceful protesters in Tahrir Square, many were injured, at least one killed. The tear gas used in Tahrir Square has Made in US stamped on it. Supply of security and torture equipment is big business.

But are they not getting a green light for this brutality from the US, a nod and a wink, watch what we do and follow our example?

Earlier in the week we saw the brutal police crack down on Occupy Wall Street, press were cleared from the area, news helicopters blocked from flying overhead, local residents locked in their apartments. The camp was trashed, books and and laptops trashed or stolen.

A couple of weeks before we saw the brutal crackdown in Portland. The irony is that Tahrir Square marched to the US Embassy to protest violence against peaceful protesters in the US.

The worse though has been the pepper-spraying of protesters. Not the use by police in self-defence when overwhelmed by an angry mob, but the police setting upon demonstrators, then pepper-spraying them,

In Seattle a 84-year old woman was pepper-sprayed in the face. She has still not recovered.

I recall the Seattle WTO protests and the brutal police crackdown, out of which grew the global Indymedia network and the anti-globalisation network. Talking with a Bolivian activist some time later, she said she showed in Bolivia film footage of people being tear-gased on the street in Seattle. The locals in Bolivia had their eyes opened. They were used to violent supression of protest, but this was in the West.

84-Year-Old Dorli Rainey, pepper-sprayed at Occupy Seattle, was there during the Battle of Seattle a decade ago. She says the police brutality is now far worse.

Norm Stamper, the former police chief of Seattle, admits he was wrong then and as a retired chief of police is highly critical of police tactics and what he terms paramilitary policing.

Remember Kent State and the killing of students in the 1960s? Has anything changed?

On UC Davis university campus the police were invited on campus by the chancellor. Students were held and pepper-sprayed into their eyes and down their throats.

Without any provocation whatsoever, other than the bodies of these students sitting where they were on the ground, with their arms linked, police pepper-sprayed students. Students remained on the ground, now writhing in pain, with their arms linked.

What happened next?

Police used batons to try to push the students apart. Those they could separate, they arrested, kneeling on their bodies and pushing their heads into the ground. Those they could not separate, they pepper-sprayed directly in the face, holding these students as they did so. When students covered their eyes with their clothing, police forced open their mouths and pepper-sprayed down their throats. Several of these students were hospitalized. Others are seriously injured. One of them, forty-five minutes after being pepper-sprayed down his throat, was still coughing up blood.

Peaceful students and faculty members attacked on their own campus at the behest of the chancellor. The chancellor should at least have the decency to resign.